Struct Delete

pub struct Delete<'a> { /* private fields */ }

A struct for building DELETE queries.

Implementations

impl<'a> Delete<'a>

pub fn new(table: &'static str) -> Delete<'a>

Start building a new DELETE query.

pub fn where_(self, where_: Where<'a>) -> Delete<'a>

Add a WHERE clause to your DELETE query.

If called multiple times, the conditions are joined using AND.

pub fn where_raw( self, statement: impl Into<String>, params: Vec<&'a (dyn ToSql + Sync)>, ) -> Delete<'a>

Add a raw WHERE clause to your query.

You can reference the params by using the ? placeholder in your statement.

Note: you need to pass the exact types Postgres is expecting. Failure to do so will result in (sometimes confusing) runtime errors.

Otherwise this behaves exactly like where_.

Example

Book::select()
    .where_(Book::id.neq(&3))
    .where_raw("complex_function(book.title, ?, ?)", vec![&true, &"Foobar"])
    .await?;

Trait Implementations

impl<'a> IntoFuture for Delete<'a>

type IntoFuture = Pin<Box<dyn Future<Output = <Delete<'a> as IntoFuture>::Output> + 'a>>

Which kind of future are we turning this into?

type Output = Result<u64, Error>

The output that the future will produce on completion.

fn into_future(self) -> Self::IntoFuture

Creates a future from a value.

impl<'a> ToQuery<'a, u64> for Delete<'a>

fn to_query(&mut self) -> Query<'a, T>

A default implementation for building a query which can then be executed.